4hl7 is a 2 chain structure with sequence from Vibch. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
[PNCB_VIBCH] Catalyzes the synthesis of beta-nicotinate D-ribonucleotide from nicotinate and 5-phospho-D-ribose 1-phosphate at the expense of ATP.[HAMAP-Rule:MF_00570]